Annals of global warming: NASA data show warming continues through 2012


This is a press release from NASA, presented here for the record, text unedited except for formatting where necessary, and the deletion of the press office phone numbers (I hope that’s not necessary, but earnest information seekers have links to get the information they seek).  Images are inserted from other, related NASA sites.

Steve Cole
Headquarters, Washington
stephen.e.cole@nasa.gov

Leslie McCarthy
Goddard Institute for Space Studies, New York
leslie.m.mccarthy@nasa.gov

Jan. 15, 2013

RELEASE : 13-021

NASA Finds 2012 Sustained Long-Term Climate Warming Trend

WASHINGTON — NASA scientists say 2012 was the ninth warmest of any year since 1880, continuing a long-term trend of rising global temperatures. With the exception of 1998, the nine warmest years in the 132-year record all have occurred since 2000, with 2010 and 2005 ranking as the hottest years on record.

NASA’s Goddard Institute for Space Studies (GISS) in New York, which monitors global surface temperatures on an ongoing basis, released an updated analysis Tuesday that compares temperatures around the globe in 2012 to the average global temperature from the mid-20th century. The comparison shows how Earth continues to experience warmer temperatures than several decades ago.

[Caption to video] NASA’s analysis of Earth’s surface temperature found that 2012 ranked as the ninth-warmest year since 1880. NASA scientists at the Goddard Institute for Space Studies (GISS) compare the average global temperature each year to the average from 1951 to 1980. This 30-year period provides a baseline from which to measure the warming Earth has experienced due to increasing atmospheric levels of heat-trapping greenhouse gases. While 2012 was the ninth-warmest year on record, all 10 of the warmest years in the GISS analysis have occurred since 1998, continuing a trend of temperatures well above the mid-20th century average. The record dates back to 1880 because that is when there were enough meteorological stations around the world to provide global temperature data.
Data source: NASA Goddard Institute for Space Studies
Visualization credit: NASA Goddard’s Scientific Visualization Studio

› Download this video and related materials in HD formats

The average temperature in 2012 was about 58.3 degrees Fahrenheit (14.6 Celsius), which is 1.0 F (0.6 C) warmer than the mid-20th century baseline. The average global temperature has risen about 1.4 degrees F (0.8 C) since 1880, according to the new analysis.

Scientists emphasize that weather patterns always will cause fluctuations in average temperature from year to year, but the continued increase in greenhouse gas levels in Earth’s atmosphere assures a long-term rise in global temperatures. Each successive year will not necessarily be warmer than the year before, but on the current course of greenhouse gas increases, scientists expect each successive decade to be warmer than the previous decade.

“One more year of numbers isn’t in itself significant,” GISS climatologist Gavin Schmidt said. “What matters is this decade is warmer than the last decade, and that decade was warmer than the decade before. The planet is warming. The reason it’s warming is because we are pumping increasing amounts of carbon dioxide into the atmosphere.”

Carbon dioxide is a greenhouse gas that traps heat and largely controls Earth’s climate. It occurs naturally and also is emitted by the burning of fossil fuels for energy. Driven by increasing man-made emissions, the level of carbon dioxide in Earth’s atmosphere has been rising consistently for decades.

The carbon dioxide level in the atmosphere was about 285 parts per million in 1880, the first year in the GISS temperature record. By 1960, the atmospheric carbon dioxide concentration, measured at NOAA’s Mauna Loa Observatory, was about 315 parts per million. Today, that measurement exceeds 390 parts per million.

NASA map, global temperature anomalies averaged from 2008 to 2012 - Goddard Institute for Space Studies

This map represents global temperature anomalies averaged from 2008 through 2012. Data source: NASA Goddard Institute for Space Studies Visualization credit: NASA Goddard’s Scientific Visualization Studio

› Larger image
› Larger image (tif)
› Color bar scale (png)

While the globe experienced relatively warm temperatures in 2012, the continental U.S. endured its warmest year on record by far, according to NOAA, the official keeper of U.S. weather records.

“The U.S. temperatures in the summer of 2012 are an example of a new trend of outlying seasonal extremes that are warmer than the hottest seasonal temperatures of the mid-20th century,” GISS director James E. Hansen said. “The climate dice are now loaded. Some seasons still will be cooler than the long-term average, but the perceptive person should notice that the frequency of unusually warm extremes is increasing. It is the extremes that have the most impact on people and other life on the planet.”

The temperature analysis produced at GISS is compiled from weather data from more than 1,000 meteorological stations around the world, satellite observations of sea-surface temperature, and Antarctic research station measurements. A publicly available computer program is used to calculate the difference between surface temperature in a given month and the average temperature for the same place during 1951 to 1980. This three-decade period functions as a baseline for the analysis. The last year that experienced cooler temperatures than the 1951 to 1980 average was 1976.

The GISS temperature record is one of several global temperature analyses, along with those produced by the Met Office Hadley Centre in the United Kingdom and the National Oceanic and Atmospheric Administration’s National Climatic Data Center in Asheville, N.C. These three primary records use slightly different methods, but overall, their trends show close agreement.

For images related to the data, visit:

http://go.nasa.gov/10wqITW

- end -

Related Links [from NASA]

› Goddard Institute for Space Studies GISTEMP Analysis
› Science Summary of NASA’s 2012 Temperature Analysis (pdf)
› NOAA State of the Climate Global Analysis: 2012
› Slides for Jan. 15 media teleconference (pdf)
› Download related multimedia in broadcast-suitable HD formats

More, and resources:

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One Response to Annals of global warming: NASA data show warming continues through 2012

  1. JamesK says:

    And I’m sure Morgan will be honest enough to say that this means that that the climate change deniers are liars creating a hoax so they can make a fat profit:

    http://www.independent.co.uk/environment/climate-change/exclusive-billionaires-secretly-fund-attacks-on-climate-science-8466312.html

    A secretive funding organisation in the United States that guarantees anonymity for its billionaire donors has emerged as a major operator in the climate “counter movement” to undermine the science of global warming, The Independent has learnt.

    The Donors Trust, along with its sister group Donors Capital Fund, based in Alexandria, Virginia, is funnelling millions of dollars into the effort to cast doubt on climate change without revealing the identities of its wealthy backers or that they have links to the fossil fuel industry.

    However, an audit trail reveals that Donors is being indirectly supported by the American billionaire Charles Koch who, with his brother David, jointly owns a majority stake in Koch Industries, a large oil, gas and chemicals conglomerate based in Kansas.

    Millions of dollars has been paid to Donors through a third-party organisation, called the Knowledge and Progress Fund, with is operated by the Koch family but does not advertise its Koch connections.

    Some commentators believe that such convoluted arrangements are becoming increasingly common to shield the identity and backgrounds of the wealthy supporters of climate scepticism – some of whom have vested interests in the fossil-fuel industry.

    The Knowledge and Progress Fund, whose directors include Charles Koch and his wife Liz, gave $1.25m to Donors in 2007, a further $1.25m in 2008 and $2m in 2010. It does not appear to have given money to any other group and there is no mention of the fund on the websites of Koch Industries or the Charles Koch Foundation.

    The Donors Trust is a “donor advised fund”, meaning that it has special status under the US tax system. People who give money receive generous tax relief and can retain greater anonymity than if they had used their own charitable foundations because, technically, they do not control how Donors spends the cash.

    Anonymous private funding of global warming sceptics, who have criticised climate scientists for their lack of transparency, is becoming increasingly common. The Kochs, for instance, have overtaken the corporate funding of climate denialism by oil companies such as ExxonMobil. One such organisation, Americans for Prosperity, which was established by David Koch, claimed that the “Climategate” emails illegally hacked from the University of East Anglia in 2009 proved that global warming was the “biggest hoax the world has ever seen”.

    Robert Brulle, a sociologist at Drexel University in Philadelphia, has estimated that over the past decade about $500m has been given to organisations devoted to undermining the science of climate change, with much of the money donated anonymously through third parties.

    The trust has given money to the Competitive Enterprise Institute which is currently being sued for defamation by Professor Michael Mann of Pennsylvania University, an eminent climatologist, whose affidavit claims that he was accused of scientific fraud and compared to a convicted child molester.

    Dr Brulle said: “We really have anonymous giving and unaccountable power being exercised here in the creation of the climate countermovement. There is no attribution, no responsibility for the actions of these foundations to the public.

    “By becoming anonymous, they remove a political target. They can plausibly claim that they are not giving to these organisations, and there is no way to prove otherwise.”

    ~~~~

    Well Morgan? How long will it take you to denounce the climate change deniers now?

    Oh wait..you’re one of them. So you’re going to tell us how much you’ve profited off being a denier right?

    Like

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